Mining-machine.



J'. A. BRANTLBY.

. MINING MACHINE.

APPLIQATION FILED um. 15, 1913.

Patented 001:. 20, 1914.

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J. A. BRANTLEY.

MINING MACHINE.

APPLICATION FILED MAR. 15. 1913.

l, l @9439. Patented Oct. 20, 1914.

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WITNESSES y INVENTOR OFFICE.

JAMES A. BRANTLEY, F ATKINS, ARKANSAS, ASSIGNOR OF ONE-THIRD TO JOHN M. MAUS, OF ATKINS, ARKANSAS.

MINING-Macnma. c

1l ,il 141,439.

To all 'whom 'it may concern:

lle it known that I, JAMES A. BRANTLEY,

v a citizen of the United States, residing at of which the following is a specification.l

-'lhis invention has relation to mining machilies, especially adapted to be used' for cutting coal, although the machine may be used to advantage for cutting other kinds of stone oi' rock formation. y

An object of the invention 4is Vto provide a machine which wiil cut the materia-l with 'ciliciein-y, there being cutting blades carried by the machine for making incisions in the material, and between these blades are arranged pick members adapted to break and withdraw the material from the incisions made by the blades.

Another object of the invention is to provide in a machine of the character indicated, a sei-.ies of cutters and picks pivotally connected together and adaptedto move in an orbit, means being provided for taking upv any slack which might occur between the members constituting the cutter and pick.

Another object of the invention is to provide in a machine of the character indicated, a main body or support with means mounted thereon for operating the cutters. A frame is movably mounted upon the support and the cutters are trained around the said frame. Means is provided for Securing the frame at an adjusted position with relation to the support.

. 'itli these and other objects in view, the invention consists in certain novel features of construction as hereinafter shown and described, and then particularly pointed out in the claims and in the drawings illustrative of the preferred embodiment of the invention.

Figure 1` is a side elevation of the machine. Fig. 2 is a top plan view of the same. Fig. 3 is a fragmentary side elevation with parts in section. Fig. 4 is a horizontal sectional view cut on the line 4-4 of Fig. 3. Fig. 5 is a transverse sectional view, cut on the line 5 5 of Fig. 4.

- Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the saine reference characters.

The machine comprises a support 1 which Specification offLetters Patent.

Patented 0ct. 20, 1914.

Application led March 15,1913. Serial No. 754,442.

is mounted on wheels or rollers 2. A motor 3 of any type or pattern is mounted upon the support 1 and is provided upon its shaft with a beveled gear wheel 4. Arms 5 and G extend 1n parallel relation from one side of the support 1, and the arm 5 is provided with an anti-friction pillow bearing 7, while -the arm 6 is provided with a'journaled bearing 8. A shaft 9 is journale'd in the bearings 7 and is provided with any annular shoulder 'or enlargement which rests upon the anti-friction members o f the bearing 7. A beveled gear wheel 10 is fixed to the shaft 9 and meshes with the beveled gear wheel 4.

A fly wheel 11 is fixed to the shaft 9 between' the gear wheel 10 and the bearing 7. A

)olylateral wheel 12 is fixed to the shaft 9 Y The wheel 12 is provided at its lower side with an annular flange 14.

A gear wheel 15 is journaled at the upper end portion of the shaft 9 and meshes with a gear wheel 16 which is fixed to the lower end of a stub shaft 17 journaled to the arm 16. An operating handle 18 is fixed to the upper end of the shaft 17. An arm 19 extends forwardly and downwardly from the wheel 15 to which it is fixed. The arm 19 is lprovided at its lower forward end with forwardly disposed parallel .fingers 2t). The

arm 19 is also provided at its forward end and at a'. point between the fingers 20 with a forwardly ydisposed externally threaded rod 21 upon which nut 22. e

In combination with the parts above .described, the machine includes a frame indi'- cated in general :it 23. This `frame includes a rear plate 24 having at its upper-side eyes 25 which receive the fingers 20 and are adapted to slide along the said fingers. The plate 24 is also provided with an iipstanding lug 26 through which the rod 21 passes and against the rear side of which the nut 22 normally bears. A polylateral wheel 27 is journaled for rotation at the forward or outer end of the frame 23, guide bars 28 constitute the sides of the frame 23, and these bars'are held properly spaced from each other by `means of suitable braces 29. The bars 28 are provided at their lower edges with outstanding flanges 30. The parts hereinbefore described constituteV the supis adjustably mounted a The picks and cutters will now be described. rihe pick members 31 have approximately rectangular bases and are provided upon their outer sides with pyramldal projections or points 32. The rear sides of the points 32 are longer than the forward sides thereof. Links 33`are pivoted at their ends to the sides and end portions of .the pickmembers 31. The links 33 are arranged in pairs and the members of each pair-are located at the opposite edges of the same ick members 31. The links 33 are provitfed at their forward end ortions with outwardl diverging cutting e ges 34. The points o the pick members 31 are located midway 'between the edges 34 of the airs of links 33.] Links 33 together with t e ick members 31 constitute an endless c am which is trained around the wheels 12 and 27, the members or links ofthe said chain are adapted to travel along the flanges 30 of the ide bars 28. It is apparent that by turning the nut 22 u on the rod 21 so that the said nut is move away from the lower 'end of the arm 19'that the nut 22 will engage. the lug 26 and move the entire frame 23 in an outward or forwarddirection whereby the opposite side runs of the chain of which the parts 31 and 33 are components will be relieved of slack and drawn taut. Therefore the members which constitute the chain may be held under tension while in 'operation and the cutting edges and pick members are resented to the coal. On the other hand, w en the nut 22 is moved along the rod 21 toward the lower end of the arm 19 the frame 23 may bemoved back toward the wheel 12 whereby the links and pick members will become slack and the said members may be slipped over the flange of the wheel 12 so that the support Y1 and the parts carried thereby may e' moved away from the A:frame 23 while it and the parts carried thereby remain in the incision made in the coal.

In o eration the motor 3 through the intermes ing wheels 4 and 10 rotates the shaft 9'which in turn carries around with it theY wheel 12. The wheel 12 moves the pick members 31 and links 33 along the guide bars 28 so that the points 32 and edges 34 operate in the material. The edges 34. cut incisions in the coal and the points 32 follow and break the material between the said incisions and drag the same out toward the rear part of the machine. By use of the hand wheel 18 and turning the shaft 17 the scribed, a w

describe an arc equivalent to one-half or more of a circle so that an opening will be made in the material approximately equal tothe length of the frame 23. Should rclatively hard objects as for instance, balls of sulfur be encountered by the cutting and icking elements they will eventually come 1n contact'with the points 32 and inasmuch as these points are pyramid in shape they are strong and will have a tendency to crush said balls or drag them out of the opening which is being made in the material.

As illustrated in Figs. 1 to 4 inclusive the base of the sup ort 1 is provided at its sides with ears 50 t rough which pins 51 pass. These dpins may be driven into the rock or groun to hold the machine steady while in operation.

Having described the invention what is claimed, 1s

1. An apparatus of the character dcscribed, the combination with an upstanding frame, of a horizontal frame, movable longitudinally toward and away from thc upstanding frame and provided with spaced Sets of apertured guide lugs, and an apertured operating lug arranged therebetween, an arm pivotally connected at one end with the upstanding frame and forked at its opposite end to provide guide fingers to operate within the apertured guide lugs and a screw-threaded shaft therebetween to operate within the apertured operating lng, a nut mounted upon the screw-threaded shaft to engage the operating lug, means to swing the arm, a wheel mounted on the upstanding frame, a Wheel mounted upon the horizontal frame, and a cutting endless belt engaging the wheels.

2. In apparatus of the character deeeled upstanding frame, a horizontal frame movable longitudinally toward and awa from the wheeled frame and pro vided wlth spaced sets of apertured guide lugs and an apertured operating lug arran ed therebetween, a cutting endless belt gui ed by the horizontal frame, an arm connected at,one end with the wheeled frame and forked at its opposite end to provide guide fingers to operate within the guide lugs and a screw-threaded shaft therebetween to operate within the apertured operatin lug, a nut carried by the screw-threaded aft to engage the operating lug to effect the longitudinal movement of the horizontal f)ri1une for tightening the cutting endless In testimony whereof I aix my signature in presence of two witnesses.

JAMES A. BRANTLEY.

Witnesses:

EMILY F. CAMP, FRANCES Kanone. 

